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If what you are doing works, keep doing it: 4LO (Four-Wheel Drive Low) should only be used in extreme low-speed, high-torque situations such as deep mud, heavy snow, steep rock crawling, or extreme inclines/declines, and you must follow the correct engagement procedure to avoid drivetrain damage. Intended Use Cases Deep mud or snow where traction is extremely poor and you need maximum torque to get unstuck Trucks Only+1. Rock crawling on steep, uneven terrain forum.fullsizechevy.com+1. Extreme inclines or declines where you need to control speed and maintain traction solutionsphere.blog. Heavy towing in low-traction conditions (e.g., deep sand, ice) carclubsusa.com.

My initial introduction was here. It's hard to believe that I last posted in February 2013, having just deployed to Kyrgyzstan. Since then, I've retired from the military and the 2006 Sierra SLT Z71 that first brought me to these pages was lost. I went forward to Afghanistan in March 2013 and did a lot of sitting behind a computer on brigade staff. Within 18 months of getting back to the States, I was selected for Drill Sergeant duty, after which I moved back to Virginia (my home state and where I served from 2004-2008). That '06 Sierra did a lot of driving between Louisiana, Georgia, and Virginia, and ended up with nearly 320k miles by 2022. By then, the registration had been expired for a couple of years, but the pandemic had all but eliminated tickets for such transgressions. Admittedly too, I usually drove my wife's SUV or son's car the 2-3 times a week I had to report to work. Teleworking sure was fun while it lasted. I started my retirement leave four years ago and stored the Sierra at my sister's house. A big mess was made when her fiancé passed while she was taking care of business out-of-state in late-2024, and his son pretty much mismanaged everything to do with the estate. Even so, I was assured that my truck was safe... until it wasn't. I found out that my truck had been scrapped about four months after the son took over everything. There's nothing I could do; I'm 1000 miles away and it was technically abandoned property since he'd even trespassed my sister from her own house (she had no claim to it as she wasn't married, and the fiancé was the sole owner). Anyway, today I got my second Sierra. This is a 2010 SLE 2WB CCSB with a little over 200k miles on it. It's got the 5.3L I'm familiar with and should handle what I need it for. Hauling stuff that won't fit in the Transit Connect (yep, I sold out, but that's the wife's vehicle) and towing a few times a year tops. The price seemed decent, considering how much people sell their trucks for in the Deep South: $4500. I've seen similar trucks listed for more than double that. I got it from a coworker who left his tag on until we transfer the title next week (Louisiana requires a notary for transfers), so I've been driving it all day. The rear speakers don't work, which is one of the things that brought me back to these forums earlier. I can't say how active I'll be as a poster, but I'll be scouring the archives while I find out every little thing I can about the 2010s and particular nuances/problems with my truck. It's definitely not a GMC, but I got another Willys Jeep a few months back as well, so I'm almost at the same place I was when I first joined gm-trucks.com. My old 1960 DJ3A was sold back around 2010 or 2011; my current Jeep is a 1946 CJ2A. So, I've got a slightly newer GMC and a much older Jeep. I kind of wish I still had that F-250 I had way back when too. The Dakota is long gone and was technically my brother's truck, though I had it registered and insured. The F-250 had to go when my grandmother's house was foreclosed on due to mismanagement around 2012 or so. Hopefully anyone that made it this far isn't too annoyed. I tend to be long-winded, but I'll be doing more reading than posting in the coming months.

Welcome back!

not all plugs will be used. gm uses more generic harnesses that support most/all options, and if your truck doesn't have a specfiic option, the plug won't be used (commonly will have a dummy insert in the plug , or it'll be taped up, but some may just be left as is). But it's sldo possible some p.o. has installed the wrong/cheaper parts that aren't correct for your vehicle...

Here's the benchmark

Lasted about a month for me. It’s a bandaid. The real fix is new leaf packs. Mines still quiet

Mine has no such noise when it starts up first thing in the morning.

I haven't been able to get on BITOG this week. Thinks I'm a robot and kicks me out. They have no idea how right they are.

No one? When/if I clean mine, depending on the results, that would be my course of action.

Here we go JR and others this is exactly what my truck does